Question 1

Provide an explanation for how a tornado could lift the roof off a building, and why it is not a good idea to open windows of a building during a tornado.

Accepted Answer

As high winds blow over a roof, lower ai

Question 2

The deadliest tornadoes are those that occur ____.

Accepted Answer

A) over large distances 
B) over long periods of time 
C) in families 
D) in outbreaks 
E) in epidemics 
A) over large distances 
B) over long periods of time 
C) in families 
D) in outbreaks 
E) in epidemics

Question 3

Distinguish between supercell tornadoes and nonsupercell tornadoes.

Accepted Answer

A supercell tornado occurs in associatio

Question 4

Discuss some examples of atmospheric situations that may suppress tornado formation.

Accepted Answer

If the precipitation in the cloud is swe

Question 5

All tornadoes come from rotating thunderstorms.

Accepted Answer

A) True 
 B)False

Question 6

An area of lower pressure that is part of a tornado's structure, perhaps 5 to 10 km across, is better known as the ____.

Accepted Answer

A) bounded weak echo region 
B) mesocyclone 
C) megacyclone 
D) vortex tube 
E) low-level jet stream 
A) bounded weak echo region 
B) mesocyclone 
C) megacyclone 
D) vortex tube 
E) low-level jet stream

Question 7

When the rear-flank downdraft strikes the ground, it may interact with the forward-flank downdraft beneath the mesocyclone to initiate _______________.

Accepted Answer

The answer of When the rear-flank downdraft strikes the ground,...

Question 8

Describe the times of year and times of day when most tornadoes occur in the United States.

Accepted Answer

About 70 percent of all tornadoes in the

Question 9

When a rear-flank downdraft strikes the ground, it may interact with a(n)____ beneath a mesocyclone to initiate tornadogenesis.

Accepted Answer

A) updraft 
B) forward-flank downdraft 
C) vortex tube 
D) suction vortex 
E) jetstream 
A) updraft 
B) forward-flank downdraft 
C) vortex tube 
D) suction vortex 
E) jetstream

Question 10

Sometimes the air is so dry that swirling, rotating wind remains invisible until it reaches the ground and begins to pick up dust, called dust devils.

Accepted Answer

A) True 
 B)False

Question 11

Give a basic description of a tornado outbreak.

Accepted Answer

Sometimes a large, well-organized fronta

Question 12

Even the most powerful twisters seldom have winds exceeding 220 knots.

Accepted Answer

A) True 
 B)False

Question 13

The most frequent time of day for tornadoes to form is in the ____.

Accepted Answer

A) early morning just after sunrise 
B) late morning just before noon 
C) evening just after sunset 
D) late afternoon 
E) middle of the night 
A) early morning just after sunrise 
B) late morning just before noon 
C) evening just after sunset 
D) late afternoon 
E) middle of the night

Question 14

Heavy rain-chilled air descends along a tornado as a strong downdraft called the ____ .

Accepted Answer

A) backwards downdraft 
B) supercell downdraft 
C) forward-flank downdraft 
D) rear-flank downdraft 
E) backdraft 
A) backwards downdraft 
B) supercell downdraft 
C) forward-flank downdraft 
D) rear-flank downdraft 
E) backdraft

Question 15

According to the Enhanced Fujita Scale, an ____ tornado causes only minimal damage, whereas an ____ completely demolishes a house and sweeps it off its foundation.

Accepted Answer

A) EF0; EF3 
B) EF1; EF5 
C) EF0; EF5 
D) EF1; EF4 
E) EF2; EF3 
A) EF0; EF3 
B) EF1; EF5 
C) EF0; EF5 
D) EF1; EF4 
E) EF2; EF3

Question 16

Once a tornado is spotted, either visually or on a radar screen, a tornado ____ is issued by the local National Weather Service (NWS)office.

Accepted Answer

A) prediction 
B) alert 
C) warning 
D) watch 
E) emergency 
A) prediction 
B) alert 
C) warning 
D) watch 
E) emergency

Question 17

As the air beneath a funnel cloud is drawn into its core, the air cools rapidly and its moisture condenses, and the funnel cloud ascends away from the surface.

Accepted Answer

A) True 
 B)False

Question 18

If the air is so dry that the swirling, rotating wind remains invisible until it reaches the ground and picks up dust, it is referred to as a(n)____.

Accepted Answer

A) invisible tornado 
B) dust devil 
C) cyclone 
D) fair-weather tornado 
E) nonsupercell tornado 
A) invisible tornado 
B) dust devil 
C) cyclone 
D) fair-weather tornado 
E) nonsupercell tornado

Question 19

If vertical stretching causes a spinning column of air to rise and spin faster, the rapidly rotating air column may shrink into a ____.

Accepted Answer

A) mesocyclone 
B) tornado vortex 
C) suction vortex 
D) dust devil 
E) downdraft 
A) mesocyclone 
B) tornado vortex 
C) suction vortex 
D) dust devil 
E) downdraft

Question 20

Doppler radar can measure ____.

Accepted Answer

A) rainfall intensity 
B) the speed at which precipitation is moving horizontally 
C) rainfall intensity and the speed at which precipitation is moving horizontally 
D) wind speeds of small tornadoes 
E) forecasted storm cells 
A) rainfall intensity 
B) the speed at which precipitation is moving horizontally 
C) rainfall intensity and the speed at which precipitation is moving horizontally 
D) wind speeds of small tornadoes 
E) forecasted storm cells

Provide an explanation for how a tornado could lift the roof off a building, and why it is not a good idea to open windows of a building during a tornado.

The deadliest tornadoes are those that occur ____.

Distinguish between supercell tornadoes and nonsupercell tornadoes.

Discuss some examples of atmospheric situations that may suppress tornado formation.

All tornadoes come from rotating thunderstorms.

An area of lower pressure that is part of a tornado's structure, perhaps 5 to 10 km across, is better known as the ____.

When the rear-flank downdraft strikes the ground, it may interact with the forward-flank downdraft beneath the mesocyclone to initiate _______________.

Describe the times of year and times of day when most tornadoes occur in the United States.

When a rear-flank downdraft strikes the ground, it may interact with a(n)____ beneath a mesocyclone to initiate tornadogenesis.

Sometimes the air is so dry that swirling, rotating wind remains invisible until it reaches the ground and begins to pick up dust, called dust devils.

Give a basic description of a tornado outbreak.

Even the most powerful twisters seldom have winds exceeding 220 knots.

The most frequent time of day for tornadoes to form is in the ____.

Heavy rain-chilled air descends along a tornado as a strong downdraft called the ____ .

According to the Enhanced Fujita Scale, an tornado causes only minimal damage, whereas an completely demolishes a house and sweeps it off its foundation.

Once a tornado is spotted, either visually or on a radar screen, a tornado ____ is issued by the local National Weather Service (NWS)office.

As the air beneath a funnel cloud is drawn into its core, the air cools rapidly and its moisture condenses, and the funnel cloud ascends away from the surface.

If the air is so dry that the swirling, rotating wind remains invisible until it reaches the ground and picks up dust, it is referred to as a(n)____.

If vertical stretching causes a spinning column of air to rise and spin faster, the rapidly rotating air column may shrink into a ____.

Doppler radar can measure ____.

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color and Atmospheric Optics

Filters

Exam 15: Tornadoes

Provide an explanation for how a tornado could lift the roof off a building, and why it is not a good idea to open windows of a building during a tornado.

The deadliest tornadoes are those that occur ____.

Distinguish between supercell tornadoes and nonsupercell tornadoes.

Discuss some examples of atmospheric situations that may suppress tornado formation.

All tornadoes come from rotating thunderstorms.

An area of lower pressure that is part of a tornado's structure, perhaps 5 to 10 km across, is better known as the ____.

When the rear-flank downdraft strikes the ground, it may interact with the forward-flank downdraft beneath the mesocyclone to initiate _______________.

Describe the times of year and times of day when most tornadoes occur in the United States.

When a rear-flank downdraft strikes the ground, it may interact with a(n)____ beneath a mesocyclone to initiate tornadogenesis.

Sometimes the air is so dry that swirling, rotating wind remains invisible until it reaches the ground and begins to pick up dust, called dust devils.

Give a basic description of a tornado outbreak.

Even the most powerful twisters seldom have winds exceeding 220 knots.

The most frequent time of day for tornadoes to form is in the ____.

Heavy rain-chilled air descends along a tornado as a strong downdraft called the ____ .

According to the Enhanced Fujita Scale, an ____ tornado causes only minimal damage, whereas an ____ completely demolishes a house and sweeps it off its foundation.

Once a tornado is spotted, either visually or on a radar screen, a tornado ____ is issued by the local National Weather Service (NWS)office.

As the air beneath a funnel cloud is drawn into its core, the air cools rapidly and its moisture condenses, and the funnel cloud ascends away from the surface.

If the air is so dry that the swirling, rotating wind remains invisible until it reaches the ground and picks up dust, it is referred to as a(n)____.

If vertical stretching causes a spinning column of air to rise and spin faster, the rapidly rotating air column may shrink into a ____.

Doppler radar can measure ____.

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color and Atmospheric Optics

Filters

According to the Enhanced Fujita Scale, an tornado causes only minimal damage, whereas an completely demolishes a house and sweeps it off its foundation.